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Debt (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2018 | Sep. 30, 2017 | May 11, 2018 | Dec. 31, 2017 | Oct. 05, 2017 | May 12, 2017 | Dec. 12, 2016 | Aug. 14, 2013
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | $ 164.3 | $ 164.3 |  |  | $ 23.8 |  |  |  |
Repayments of debt |  | 11.2 | $ 364.6 |  |  |  |  |  |
WTM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total commitment under revolving credit facility |  |  |  |  |  |  |  |  | $ 425.0
MediaAlpha |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | 15.0 | 15.0 |  |  | 23.8 |  |  |  |
MediaAlpha | MediaAlpha Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | 15.0 | 15.0 |  |  | 23.8 |  |  |  |
Face amount | $ 15.1 | $ 15.1 |  |  | $ 23.9 |  |  |  |
Effective percentage | 6.82% | 6.82% |  |  | 5.60% |  |  |  |
Unamortized issuance cost | $ (0.1) | $ (0.1) |  |  | $ (0.1) |  |  |  |
Total commitment under revolving credit facility |  |  |  |  |  | $ 28.4 | $ 20.0 |  |
NSM Holding Co LLC |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | 149.3 | 149.3 |  |  | 0.0 |  |  |  |
NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total commitment under revolving credit facility |  |  |  | $ 100.0 |  |  |  |  |
Revolving Credit Facility | MediaAlpha | MediaAlpha Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Long-term line of credit | 10.0 | $ 10.0 |  |  |  |  |  |  |
Revolving Credit Facility | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total commitment under revolving credit facility |  |  |  | 10.0 |  |  |  |  |
Borrowings under facility |  |  |  | 2.0 |  |  |  |  |
Term Loan | MediaAlpha Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.50% |  |  |  |  |  |  |
Term Loan | MediaAlpha | MediaAlpha Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Face amount | 15.1 | $ 15.1 |  |  |  |  |  |  |
Total commitment under revolving credit facility | 18.4 | 18.4 |  |  |  |  |  |  |
Repayments of debt | 0.8 | 2.8 |  |  |  |  |  |  |
Term Loan | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | 147.3 | 147.3 |  |  | 0.0 |  |  |  |
Face amount | $ 150.6 | $ 150.6 |  |  | 0.0 |  |  |  |
Effective percentage | 7.50% | 7.50% |  |  |  |  |  |  |
Unamortized issuance cost | $ (3.3) | $ (3.3) |  |  | 0.0 |  |  |  |
Long-term line of credit |  |  |  | $ 51.0 |  |  |  |  |
Repayments of debt | $ 0.4 |  |  |  |  |  |  |  |
Debt, weighted average interest rate, all-in | 6.69% | 6.69% |  |  |  |  |  |  |
Term Loan | NSM Holding Co LLC | Other |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | $ 2.0 | $ 2.0 |  |  | 0.0 |  |  |  |
Term Loan | NSM Holding Co LLC | Ageas Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Long-term line of credit | 2.3 | $ 2.3 |  |  |  |  |  |  |
Acquisition date fair value of debt |  |  |  |  |  |  |  | $ 2.0 |
Line of Credit | MediaAlpha Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.25% |  |  |  |  |  |  |
Line of Credit | MediaAlpha | MediaAlpha Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Repayment of lines of credit | 4.0 | $ 6.0 |  |  |  |  |  |  |
Line of Credit | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Repayment of lines of credit | $ 2.0 |  |  |  |  |  |  |  |
Interest Rate Swap | NSM Holding Co LLC |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Derivative, fixed interest rate | 2.9745% | 2.9745% |  |  |  |  |  |  |
Derivative, variable interest rate | 2.07% | 2.07% |  |  |  |  |  |  |
Interest Rate Swap | Term Loan | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Derivative, variable interest rate | 2.07325% | 2.07325% |  |  |  |  |  |  |
Interest Rate Swap | Term Loan | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Derivative, fixed interest rate | 2.9745% | 2.9745% |  |  |  |  |  |  |
Debt, weighted average interest rate, all-in | 7.47% | 7.47% |  |  |  |  |  |  |
Carrying Value | MediaAlpha | MediaAlpha Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | $ 15.0 | $ 15.0 |  |  | $ 23.8 |  |  |  |
Carrying Value | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Total debt | $ 147.3 | $ 147.3 |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) | Minimum | Term Loan | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 4.25% |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) | Maximum | Term Loan | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 4.75% |  |  |  |  |  |  |  |
Prime Rate | Minimum | Term Loan | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 3.25% |  |  |  |  |  |  |  |
Prime Rate | Maximum | Term Loan | NSM Holding Co LLC | NSM Bank Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 3.75% |  |  |  |  |  |  |  |

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